Rothney Astrophysical Observatory

Expanding our knowledge of the universe.

Public events

We are now closed to the public and there are no public programs scheduled. Please watch our website for updates news on live stream online events. Keep looking up at the Stars.

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School programming

We are taking bookings for Fall 2020 and Winter 2021. Book your class in for a day or evening of experiential learning opportunity at a working science facility.

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Dark skies

Learn how we are working on preserving the wilderness of the night sky in and around Calgary.

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Learn about how the observatory is contributing to the science of astrophysics.

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Two students using a telescope.

Where to find us

Rothney Astrophysical Observatory

210 Avenue W, Hwy 22 S
Foothills No. 31, AB T0L 1W0

(403) 931-2366

GPS coordinates  
Lat 50.868039 deg N,  Long 114.291142 deg W


The Rothney Astrophysical Observatory (RAO) is located near Priddis, Alberta, about 30 kilometres southwest of the Calgary city centre. It is less than an hour drive from the University of Calgary.

  • Take Macleod Trail south.
  • Go west on Highway 22X, towards the mountains.
  • Continue past Spruce Meadows, past 37 Street, 69 Street and 83 Street to a major intersection where Highway 22X meets Highway 22 (this intersection is illuminated after dark).
  • Turn left toward Millarville (heading south).
  • About 1.2 kilometres south along Highway 22, look for the RAO sign on the west side of the highway. Then in 10 metres, look to the east side of the highway for the large RAO sign and gate. Drive through the gate and follow the gravel road up the hill to the parking area.

Click image to open Google Maps.

Showcasing Indigenous Skylore